Roofing material.



PATENTED FEB.26, 1907.

E. H. BINNS.

ROOFING MATERIAL.

APPLICATION FILED APR.25, 1906.

[NYE/ T0 1 I Q ,7 v -1 ATTORNEY WITNESSES W EDWARD H. BLNNS,

. RooFme MATERIAL.

Specification of Letters Patent.-

Patented. Feb. 26, 1907.

Application filed Apr-i126, 1906. Serial No. 313,539.

To all whom it may concern: I I

Be itknown that I, EDWARD H. Burns, a citizen of the United States of America,gresiding in the township of Upper Merion, in the county of Montgomery, in the State of Pennsylvania, have invented a certain new and useful Improvement in Roofing Material, of which the following is a true and exact description, reference being had to the accompanying drawings, which form a part thereof.

My invention relates to roofing material, and has for its object the construction of a plate or tile out of different materials and in such a manner that when all are combined in one structure a ractical and economlcal article 1s produce 4 My invention consists in the details of con struction and manner of operation set forth inthe following descriptionand accompanying drawings, in which like reference characters refer to the corresponding parts.

In the drawings, Figures 1, 2, 3, and 4 represent perspective views of my inyention,

taken during the successive steps of the construction of the same. Fig. 5 is a erspective view of my invention as a comp eted article, and Fig. 6 is an enlarged longitudinal section on the lines 6 6 of Fig. 5.

. Referring to Figs. 1 and 2, AA indicate parallel sheets of strawboard, paper, or other ke material between said sheets, and glued to the same is a corrugated sheet B. This latter sheet is also made out of light material and forms, together with the outside sheets, interstices or channels, so that the. .entire structure may be defined as cellular. These interstices onchannels are filled with powdered slaked lime, sand, or other granular ma-' terial C to give body to the-structure. The

parallelsheets A A are bound around theiredges by ametallic-stri D, as shownin Fig. 3,-to confine the gran ar material or filling between the sheets and withi ufthe inter-i stic'es or channels. This metallic strip is made uI-p of two pieces of thin sheet-iron sub-'v stantia y U-shaped in transverse section, each piece inclosmg anedge-andone side of the sheets and bent at right angles at a point adjacent to each of its ends to 'inclose a or- .tion of the end edges of said sheets. ehe

right-angled portions of this metallic strip are of such a length as to overlap each other along the end edges of the sheets and are fastened together in any suitable manner. The

edges of the sheets are confined on their four sides within the U-shaped metallic strip, being.v inserted and driven therein with a ointed instrument'or in any other suitab e manner. So much of the structure as above described I may defineas the body portion of my plate or tile. asphalt and then passed through small heated rolls to form a smooth coating E on '.the entire exterior surface thereof, as shown in Fig. 4. I confine the'bod portion thus coated by. two thin sheets 0 lead or other. One of these metallic foil-like material sheets is cut a little larger than the surface [area of the plate and has its corners notched, so that the overlapping portions may be This body portion is dipped in liquid I rolled around the edges of the body portion.

The other sheet is made slightly larger than the surface area of the body portion and incloses the opposite side of the plate. The two sheetsare joined'together by soldering the adjacent edges. v

Thefilling of the interstices or channels with granular material can be effected by turning the parallel sheets with their contained channels upon their edges, placing the same side by side, and binding them tightly together in. a suitable box adapted to act as a shaker. The granular material is spread over the surface of the upper edges of the channels and by virtue of the movement of the box is shakenintothe channels until the latter are filled. Should this operation be continued a short period after the filling, the said materialwill become thoroughly packed.

- By the above-described construction I am enabled to produce-a practical and economical plate or tile having essentially the advantages of a solid metal late and at the same time save in the cost t ereof by substituting a chea er body material. vioust iat I may utilize any thin material in the construction of the casing and that I can also substitute 'for the stiaWboard or paper.

sheets and granular material any other material shaving the functions of abody or filler.

Having now described my invention, what. I claim as new, and desire to secure by Letters Patent, is-

Of course it is ob- 1. A roofing-plate having a body portion made up of a cellular sheet having its interstices filled with granular material, said body portion being inclosed within a casing of thin metallic foil-like material.

2. A roofing-plate having a body portion made up of a cellular sheet having its interstices filled with granular material, the said body portion being coated withasphalt and inclosed within a casing of thin metallic foillike material.

3. A roofing-plate having a body portion made up of a cellular sheet having its interstices filled with granular material and bound around its edges by a metallic strip, the said body portion being coated with asphalt and inclosed Within a casing of thin metallic foillike material.

4. A roofing-plate having a body portion made up of a cellular sheet having its cellular interstices filled up with granular material the said body portion being coated with asphalt and inclosed within a casing consisting of two thin metallic foil-like sheets, the one being of larger surface area than said body portion and having its overlapping portions inclosing the edges of the same andthe other bein connected to the first-mentioned sheet by so dered joints.

5/ A roofing-plate having a body portion made up of granular material confined in channels formed between light strawboard sheets, the said body portion being bound at its edges by a metallic strip and having its outer surface coated with asphalt, a casing for said body portion of thin metallic foil-like material.

6. A roofing-plate having a body portion made up of granular material confined-in 

